It has been a LONG time since I was involved with a project like this and even then we were using a "special" version of Oracle called Trusted Oracle. Don't know if it's available anymore. Anyhow it was a project for Strategic Air Command, now Air Combat Command, that was very classified. The Trusted Oracle had provisions in it to declare data at the row and column levels as having a classification of Top Secret, Secret, Confidential, Restricted, and Unclassified. People also had security attached to them. It was kinda interesting as you'd select data from a table and rows and columns would